Arqit (ARQQ) Director Carlo Calabria Exercises RSUs, Disposes 757 Shares

What Happened
Carlo Calabria, a director of Arqit Quantum Inc. (ARQQ), had 757 restricted stock units (RSUs) convert into 757 ordinary shares on July 17, 2026 (reported as an exercise/conversion of a derivative, code M). The filing also reports a same-day disposition of the 757 shares. The conversion shows $0.00 per share (RSUs converted on a one-for-one basis), and no cash proceeds are listed for the disposition.

Key Details

• Transaction date: 2026-07-17 (reported on Form 4 filed 2026-07-21). Filing appears timely (within required reporting window).
• Quantity: 757 shares acquired via RSU conversion; 757 shares disposed (same date).
• Price: $0.00 per share for the conversion/disposition (reflects RSU conversion; no purchase price).
• Shares owned after transaction: Not specified in this Form 4.
• Footnote: F1 states RSUs convert one-for-one into ARQQ ordinary shares and the RSUs vested within the week of the grant date.
• Legal note: As a foreign private issuer, Arqit’s insiders are exempt from Sections 16(b) and 16(c) of the Exchange Act per Rule 3a12-3(b).

Context
This filing documents an award conversion (RSUs vesting and converting into shares) and a same-day disposition of the resulting shares. For retail investors, conversions of RSUs are routine compensation events; the reported disposition does not, by itself, indicate the insider’s view of the company’s prospects.